Abstract: On the precondition of ensuring the high recoveries of copper and zinc minerals.From Hongtoushan the proper grinding fineness，types of collectors and collector dosages for strengthening the recoveries of gold and silver minerals from the complex copper-zinc sulfide containing gold and silver were determined through experimental study.The optimized flotation technology contained one rougher，two scavegings and three cleanings for copper flotation，during which all of the middlings returned to the previous flotation operations accordingly.With the technology utilized in this study，a copper concentrate of 22.22% Cu with a recovery of 92.21% were produced.The grades of gold and silver in the copper concentrate were 5.51 g/t and 295.00 g/t，respectively.The recoveries of the gold and silver in the copper concentrate were 58.07% and 60.51%，respectively.

Key words: Sulfide copper-zinc ore, Associated gold and silver, Comprehensive recovery